3.2.2 Effect of plateau pika disturbance intensity on plant
species richness
Accounting for the five-site scale effect,
the plant species richness increased
and then decreased as the plateau pika disturbance intensity increased
(Figure. 7A). Accounting for one site effect, the plant species richness
showed hump-shaped trends at Gangcha, Haiyan and Qilian and increased
linearly at Luqu and Gonghe with increasing disturbance intensity
(Figure. 7B).